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y <br />y <br />0 <br />0 24. A pump shall be used as specified in Section 5B. <br />C� <br />25. Pressure Distribution: <br />(a) Perforation holes shall be three -sixteenths to <br />one-fourth inch in diameter drilled in a <br />straight line along the length of the pipe. <br />Hole spacing shall be 36 inches. Holes shall <br />be drilled straight into the pipe and not at <br />an angle. <br />(b) The perforated pipe laterals shall be connected <br />to a two-inch diameter manifold pipe with the <br />ends capped. The laterals shall be spaced no <br />further than 40 inches on center and no further <br />than 20 inches -from the edge of the filter <br />material. <br />(c) The perforated pipe laterals shall be installed <br />level with the perforations downward. <br />(d) The manifold pipe shall be connected to the <br />supply pipe from the pump. The manifold shall <br />be sloped toward the supply pipe from the pump. <br />26. Additional Construction Procedures-: <br />(a) Additional construction procedures and methods <br />can be found in the mound packages available <br />from City Hall. <br />BU -11 <br />